Question

3. Mia spins a coin until she gets a head. The probability she needs just one spin is. The probability
she needs two spins is. The probability she needs three spins is 1 Work out the probability that
she needs:
A more than one spin.
B more than two spins.
C more than three spins.​

Answer 1

Answer:

1\2. 1/3. 1/4 are your answers

Answer 2

Probability for Different case found

Step-by-step explanation:

Probability of Head = 1/2

Probability of Tail ( Not head) = 1 - 1/2 = 1/2

The probability she needs just one spin  to get Head  = 1/2

The probability she needs two spins is =  (1/2)(1/2)  = 1/4

The probability she needs three spins = (1/2)(1/2)(1/2) = 1/8

Probability she need more than one spin =  1/2

Probability she need more than two spin =  1/4

Probability she need more than three spin = 1/8

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